Table 3.
Temporal properties of the major 6 clusters.
| Cluster | Size | Silhouette | Mean (Year) | Theme | Alternative Themes |
|---|---|---|---|---|---|
| 0 | 96 | 0.886 | 2008 | Cost overruns | Transportation infrastructure project |
| 1 | 59 | 0.825 | 2010 | Quantitative spatial economics | Infrastructure spatial framework |
| 2 | 57 | 0.976 | 2009 | Prioritizing highway defragmentation location | Impacts approach |
| 3 | 55 | 0.762 | 2007 | Local development | Public transport investment |
| 4 | 54 | 0.91 | 2012 | Land value | Property value |
| 5 | 52 | 0.903 | 2008 | Regional economic growth | Regional economic growth |